Protected metal structure.



P. M. STEWART, PROTECTED METAL'STRUCTURE.

APPLICATION HLED APR.6,1916.

Patented 0st. 16, 1917.

sra'rns narrar oriana., N

:PEREZ r/LsTEWAET, or NEwYonKfN. Y., assrerron To GEETEUDE r. STEWART,` or` y NEW YORK, E. Y.

` reraooi. jj

y riaoTEcTEn METAL STRUCTURE.v

Specification of Letters Patent.

Patented oet. ie, i917.

Applieation'led April 6, 17916. l Serial No. 89,283.

.To all 'whom tmay concern: l "Be it knownxthat I, PEREZ M. STEWART, a citizen of the .United States, and a resident ofthe `borough of4 Manhattan, .in the city, county, and State ofeNew` York, .have invented an Improvement in Protected Metal Structures, of which the following description, in connection with the accompanying drawings, is a specificatioinlike characters on the drawings representing like parts.

This invention relates to la protected metal structure andi is herein shown as a composite bar, which` is especially adapted among other uses -to beemployed as a skylight bar. A

`The `inventionhas `for its object to provide a skylight or;` othencomposite bar,

ywhich is highly insulated against heat and l.to

cold, moisture51 fumes, condensation, etc., and which can be assembled at the shop and `shipped tok thejob as one piece,` ready for use. l y

.The :invention `further has `for. its object to provide the protected ,metalbar with a cushion for the glass as will lbe described,

and also has for its object to produce asky- `light or `like bar whichv is light, inexpensive and highly eflicient.` These `and other` features of this invention will be pointed out in the claims at the end of this specication. Y

Figure l represents in section and per-v spective one construction of protected metal bar embodying thisfinvention, and Fig. 2, a modification to be referred to. y

In the preferred embodiment of the invention, employ a metallic memberhaving thin sheet metal side Walls 10, 12, spaced apart and arranged substantially parallel to each other.

4The side walls 10, 12 are `preferably curved 'outwardly at theiry lower ends ,to `form gutters 13, 14, and are metallically connected together, which may be effected by a thin sheet metal top bar 15, preferably integral with the side walls 10, 12', and also by means of tie `rods or bolts 16 located preferably near the lower ends of the said `side walls, said bolts ortie rods having on them .metal orother sleeves 17, which serve asispacing devices' for the'side walls 10, 12.

The top bar and -side wallslO, 12, being of thin sheety metal andof light gage, such as:` 24 gage metal, are capable` of being `pressed 'up byfhand or by machinery at a minimum cost to form a channel bar metallic member having gutters integralk with it,

Yas is preferred, fibrous material, such. as

asbestos paper or felt, wool felt, paper, 'and the like.

The protective layer 24 is adhesively se` curedfto the metalr member by the asphalt or like adhesive and protecting material 22,V

and as represented in the drawingscompletelyA envelope the metal member and has its ends overlapped on the'inner surface of one of the side walls as 10.

. The protective layer 24 may also envelop a cushioning member 25, Apreferably of cork as represented in Fig. 1, whichcushioning member is supported by the top wall or bar- 15 of the metallic member.

The space between the side walls 10, 12, may and preferably will Vbe filled with plastic material, preferably of gypsum or like light plastic material, which when set forms a non-metallic member 26 within the metallic member, and serves as an insulator against heat and cold and prevents condensationon the interior of the metal member, and also serves as al stiifener for the metal member.

While'it may be preferred to completely cover the inner surfaces of the metal member with the protective layer 24, it is not desired to limit the invention in this respect, as the protectivek layer may be omitted from the greater portion of ther inner surface of themetal member when the .plastic body or filler 26 is used, for the latter acts as a protection ,for the inner surface of the metal member against corrosion, fumes, etc.

The body or iiller26 of yplastic material may also serve as a backing member for bolts 27, which have their heads 28 ,located onthe underside ofthe top wall or `bar 15 yofthe metal member, and have their Shanks `.the invention in this extended up through Vthe ysaid-top wall or bar and through the'cork or other cushion and-vthrough`A the asbestos or other prof tective layer 24.

It may be preferred to envelop the cork or ether cushion 25 with the protective layer 2a as represented in Fig. l, but it is ,not de-k sired to limitthe invention in this respect,l

ready to be shipped to the job as a complete f article with the ycushion forming ya part thereof, for vin the construction shown in Fig. l, the cushion 25 is held from accidental displacementby the protective covering 24 and by' the bolts 27, and in Fig. 2 bythe said bolts. WVith the construction shownin Fig. 2, the cork cushion 25 may be slipped over the bolts 27 at the job before or afte the skylight bar is placed in position. 'f 'The bolts 27 are used to secure the lusual capv piece (not shown) but which is used to hold the :glass (not shown) in place onthe skylight bar, and said glassmay be quickly and easily renewed in case of breakage` by simply removing the said cap piece. i :When the protective layer.- 24 is of a librousmaterial, its outer surface may Abe lpainted. or otherwise provided with a coating of'waterproof.material The plastic member 26 may be provided with 'a metal rein'forcementrof known construction if desired. Y f 'Y f From the above description, it will be observe'd'that the composite bar which is es# pecially adapted for use as a sky-light bar,

'can be assembled complete in' the shopand shipped to the jcb ready to be put upA and have the-glass applied to it `withthe least possible labor, and thatv a skylight can be built in a' minimum time and Vat a minimum cost; that the metal portions of the bar are thoroughly protected against heat, cold, moisture, fumes, condensation, etc.,'and that the bar is light, inexpensive and highly eiii cient, and is provided with a cushion for the lass.v Y f While the composite bar is especially'useful as a sky-light bar, it is not desired to limit the invention in this respect, as the invention may be embodied in bars designed forother uses. The composite bar may be fastened tothe vcurb or purlins of the building byanysuitable fastening devices, such as clips or angles, not shown.rv

liurtheiunore, it may be preferred to Vprotect the 'metallic channel bar ,as herein shown and described, but it is'not desired to limit respect;y Claims: l f .a 4l. A composite barcomprising a metal membervhaving fa top wall and side walls extended said top wall and outwardly y bent at their lower ends to form gutters, re-

inforcing plates lfor Vsaid side walls, a vlayer of hydrocarbonaceous material covering said metal member, a protective layer covering theexposed surfaces of said metal member, means for tying said sidewalls together, a body of plastic material between said side walls, and a cushioning member interposed between the said top wall and said protective layer'.

f1 .2.` Av composite bar comprising a metal member having a--top `wall andside walls extended from said top wall and'outwardly bent attheir lower ends toformv glitters, 'ree inforcing plates for said side walls, a layer of hydrocarbonaceous material covering said metal member, a protectivevlaye'r covering the vexposedsurfaces lof said metal member, means for'tying. said side walls together, a body' of plastic material .between said side walls, acushioning member supported by saidt'op wall, anddevices extended from .said top wallfthrough said cushioning member.

v3. A composite bar comprising ka `metal member having a top vwall Vand side-walls eX- tended from said top wall andoutwardly bent at their lower ends to ferm gutters, re-

inforcing plates attached to saidside walls, 'a protective layer covering the exposed `surfaces of said metal member and adhesively securedr to the latter, means for tying said side walls together, a body of plastic ma,- terialbetween said side walls, a 'cushioning member supportedby. said topV wall, V'and .devices extended yfrom said top wall through said cushioning member. f

1l. A- composite bar comprising i sheet metal side walls anda top wall, 'reinforcing members for said sidewalls, a tie rod connectingy said side walls, a body of plastic material between said side walls, a cushion member supported by said top wall, and a device supported by saidl plastic material and extended'thrcugh said top wall and cushion.

Y 5. A composite bar comprising sheet metal side walls and a top wall, tie rods connecting said side walls, a body of plasticfmateri'al` between said side walls,.a cushion `member supported by said top wall, and `a.I

device supported by said 'plastic material and extended through said top wall and cushion. f

6. A. composite bar comprising sheet metal side' walls, tie rods connecting said side walls, a body ofl plastic material between said side walls, a cushion member above said plastic'materiahand a 'device'supported by Vsaid plastic material and eXtendedfth-rough said cushion. 'f y Y Y f 7.- A; compositezbar comprising a top plate, a body of plastic material'belowsaid top vics plate, acushion membersupported by said 130 Walls, a cushion supported by said top Wall, and devices supported by said plastic ma- 10 terial and extended through said top Wall and cushion. y

In testimony whereof, I have signed my name to this specication.

PEREZ M. STEWART.

top plate, and a device supported byy said plastic materialand extended through said top plate and cushion.

8. A composite bar provided With a top `Wall and With substantially thin side Walls, reinforcing plates materially thicker than said side Walls and firmly secured thereto, a filling of plastic material between saidV side Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. f 

